Heat engine



E. G. B'AKER July 6, 1948.

HEAT ENGINE 3 Sheets-Sheet 1 Filed Dec. 30', 1944 ,m QM W 4 0 31 z [I E8 5 4 z July 6, 1948.

E. G. BAKER HEAT ENGINE Filed Dec. 30, 1944 Eva/w G. flnmm ZYMQW 770/?NE X E. G. BAKER Jul s, 1948.

HEAT ENGINE 3 Sheets-Sheet 5 Filed Dec. 30, 1944 R. am n Patented July6, 1948 om TED STATES PATENT ol-"el-cs BEEN-1 .Erwi-n G. Baker,Indianapolis, -Ind.

AppIication December 30, 1944, Serial No. 510599 12Cla'1ms. :1 v Thisinvention relates to an engine operating on what mightiheacallecladelayed'two-cycle principle. priimarwtadvantage :oflthe invention 318that the strnotmle .iembodying fit :may he made exceedingly simple,lwithont azalves and the :attendant walvin-grgear, icrank shaft, and:any elaborate oiling system. n lstilliurther .umportant advantage no-f::the'linven'tion usrdzhat a con- -tinuous szfiaw of power. deltverediatithe final drive shaft andiyet each inistonzandzcylinder has a. rest:period'between the fifingzofsthe zcharge in the sparticularacyl-inder,.zaltlIo-ugh all .of :the cylinders employed in the engine will :fire:once for each revolution of the admire :shaft.

A,:further v irn,porta-nt'ohiect of the invention iis ito :provi.de.anexceedingly-high power output per innit Weight with :such 19:11overlapping of power :impulses ithat-ithe final drive --is-:by asubstantially 'constant :torque.

FIlhese rand-manylotheriohjects and: advantages 1 .of :the invention;will .become {apparent to those versed in the :art :in lthB'ffLOllOWiHB'description ofionetparticular :fcrm f ithe zinventionwzmore or lessdiagrammatically illustrated-in the ac- .compa-nying drawings, on whichFig. 1-is1alview prirnarily in :central vertical longitudinal :sectionthrough (a -.structure. embodying the invention;

Fig. 2,:a :detail in transverse :section through an -oil supply groovesin a :piston on :the line 2-:2 in iFlig. 1;

Fig. '3, a detail. in vertical transverse section 10h the :line git-.3:in Rig. 1 through the :conneotion between a piston and a drive bar;

Fig. A, ;a vertical transverseseiction ion the vline l-24 inF-lg. 1,;

Fi 5., :a horizontal transverse section on the iline 5-5 in :Fig, 1,;

Big. -fi, *a top ;plan aview 1.0T :the engine impartial section; and

Ri 7, :a view in drontrend l-elevation zin partial section.

iLikeioha-raoters oimeferenceiindicate dike parts throughout the severalwiews inlthe drawin s.

In the showing .rherein, -;it is to who understood that in:productiomrefinements will bo-employed particularly in regard tohearings, mounting means of the.=various elements, and the :like.Referring to rthe -.draiwings, a .suitable [housing t0 is termed tocarry :therein an L-shaped crank I-.l -in-a stationary imanner, -toihavea vertically disposeddeg thereof \extendingiupwardly :throughthe-housing .i=ll,.and la horizontally disposed leg extending -.aroundand :horizontally toward the IOutsDf suitable material-whiohwould he{quite rigidin respect to bending -from the ri ht-an le formed by thevertical and horizontal legs thereof.

-1lhe upwardly directed leg, of theprank rlzl is fixed in positioncentrally through atop plate zit :carried'in turn by :the housing All.:For vertical adjustment of the crank H the upper and of the crank M mayJae threaded xto ibe-lowered tor-raised rby the turning of theadjusting-nut 43 which screw threadedl-y rengages externally-10f thecrank endrand-bears-byits under sideagainst :a seat on :thetop side of:the. plate 42. Then any suitable means ,isprovided to prevent rotation.of the icr-ank H alboutr-its vertical axis, such meansiherein .being vshown as a set screw l4 passling through-an upturned portion of :theplate .l 2 and engaging the crank ,H .therewithin.

,An upper barrel .15 is provideduto havean axial bore therethrough .tofitu-around the upturned leg of the crank-M with aclose-running fit, anysuitable bearing surface .or surfaces :heing employed therebetween. KAcollar M w-fixed around the prank I l supports thelaarrel l5 .-.fr.omits aunderside so .as to position it in s respect to Fits elevationalong the upturned arm of the crank ll-l. "A spacing-collard?! ziSinterposed between =the-under sideof the plate 12 and {the top of-;-thebarrel l5 'sov-as to maintain that elevzation of (the barrel t5. f-Ilhebarrel 4 51spreferahly-prouided with some external cooling-means hereinshown iasia pluralityiof fins 1 ifiiextending therearoundzand theupperportion :of .the housing i0 ,is properly .apertured to provide for.air. passage zthroughtthe housing. and (around and:acr0ss the fins 18.

\Radially spaced outward trom the :axis of the :barrel ..l5 vare aplurality of cylinders .19, herein shown as eight in =num'ber,- eachequally :spaced apart circumferentially one from :the :other, the axesiof ;the cylinders being parallel with the centralaxis of the barrel t5.Thesetcylinders llt iqnen through the lunder faceiof the barrel .and.are vplosed at their upper ends with some fuel -igniting means beinginserted therethrough, :SllCh iasra spark plug (26. fIlhe barrel L5; isiurther provided with transverse bores =2 rradiallyfextending :trom thecentral ,bore of the barrel opening into each cylinder (and leading fromeach .cylindertto finally open-through the outer cylindrical-wall of thebarrel, these bores ,21 being ali ned to have their iaxes'in a commontransverse plane itowardithet-lowereend .of theebarrel t5.

llhe npperlegat leastof theicrankrl'l is-hollow, :and-is provided with aport 22itoregister1with imar of the housing |-.0. Tlhis crank-Ir! =is'made the inner ports ofzthe horesiil as the--barrelilz5 may be revolvedaround the crank arm. The housing l9 engages the lower circumferentialwall of the barrel IS with a sliding fit so that the outer ends of thebores 2| are normally closed off, Fig. 5, until those ends registersuccessively with an elongated port 72 on the inner end of a bore 23passing through the housing 19 and radially aligned.

On the horizontally disposed leg of the crank is revolubly mounted abarrel 24 fixed against longitudinal travel thereon by any suitablemeans, such as a collar 25 on the crank II and an outer frame 26supported by the housing I9.

This barrel 24 is interconnected in a driving man nor with the barrel l5through bevel gears 21 and 28 on the lower and inner ends respectivelyof the barrels l5 and 24, these gears being in con'-.

- the barrel 24.

: 'Ineach cylinder 29 of the barrel 24 is slidingly mounted a drive bar39, each of these bars being identical and being externally cylindricalto have asliding fit in its respective cylinder 29.

Then in each of the cylinders H! of the barrel l5is slidingly carried apiston 3! to interconnect by its lower end with the end of the drive bar39 respectively extending from the lower barrel 24. While it is possibleto make an integral connection between the piston 3| andthe drive bar-30 in each case, it is preferable to make a 'rockableconnection toallow for minute errors in machine work, as well as variations occurringin expansion and contraction between the various parts. One form of sucha connection between these members is illustrated primarily in Fig. 3,whereinan ear 32 extends from the bar 30 to have parallel vertical facesacross which slidingly extend the downwardly directed legs 33 and 34from the piston 3| and then a piston pin 35 is carried through the leg33, the ear 32, and the other leg 34 to pin those two members 39 and 3|together in a rockable manner.

;Both the drive bars 39 and the pistons 3| are made out of a highlyheat-resisting material, such as may be obtained commercially under thetrademark- Graphitar which is used in electric furnaces; "Thisparticular material is not only highly heat-resisting, but itsinherently contained graphite affords a substantially frictionlesssurface bearing against the cylinder walls 29 and IS in each instance.As is indicated in Fig. 1, both the drive bar 3|] and the piston 3| ineach instance has substantially the same diameter "throughout its lengthso that those two members are axially aligned in respect to theirreceiving cylinders in any and all positions they may take in respectthereto.

To further reduce friction and aid in cooling 'as well, an oil sump 36is provided in-the lower part of the housing l0 particularly under thebarrel 24, and a passageway 31 leads from the outer circumferential faceof the barrel 24 inwardly to open into a cylinder 29 in each onethereof. Preferably this passageway 31 is located toward the inner endof the barrel 24 through which the cylinders 29 open, as indicated inFig. 1. The drive bar 30 in each instance is provided with a bore 38therethrough registering by its outer end with an opening 39 in thepiston pin 35, from which bores 40 and 4| lead upwardly through therespective legs 33 and 34 to a transverse passageway ,42 in turn openinginto a central bore 43 leading upwardly through the piston 3| todischarge laterally toward the top end thereof into an oil groove 44 bymeans of a plurality of transverse passageways 45. This oil groove 44 islocated below piston rings 46 carried around the upper end portion ofthe piston 3|. Preferably, to relieve and permit return flow I of theoil back into the lower sump 36, each .15

piston 3| is provided with a spiral groove 41 lead- 'ing' from below theoil groove 44 so as to carry the oilback down around the piston 3| anddischarge it from its lower end to allow it to drop back into the lowerportion of the housing ID. This oil return means plus the scraping ofthe rings 46 above prevents excess oil from flowing past the upper endof the piston.

The lengths of the cylinders l9 and 29 and of the drive bars 30 andpistons 3| are so proportioned that whenone cylinder 29 is atitslowermost position, Fig. 1, and a cylinder l9 at its extreme right handposition, the piston 3| will be at its lower limit of travel with therings 46 still. well within the cylinder l9, while at. the same time'thedrive bar 39 will be in its most extended position from that lowercylinder 29 and still have a sufilcient length of the bar 30 withinthe'cylinder 29 as to prevent cocking of the bar in the cylinder.

To supply fuel to the various cylinders l9, any suitable fuel supplymeans may be employed, a simple form being herein shown as bysupercharged carburation of a volatile fuel. The barrel 24 is providedwith any suitable drive means, such as a worm 48 therearound meshingconstantly with a worm wheel 49 fixed on a shaft 50 that extendsupwardly into a supercharger 5|, the detail construction of Whichis notherein shown but may be of the standard design now commerciallyemployed. Mounted directly over the supercharger is a carburetor 52having its discharge through a pipe 53 centrally into the supercharger5|. An air cleaner 54 is mounted on a pipe 55 which discharges into thecarburetor 52. The discharge of the supercharger 5| is taken by a pipe56 which leads therefrom and around into the upper open end of the crankN, Fig. 1. The only outlet from the crank to discharge the fuel mixtureforced therein is through the port 22.

Now when the barrel I5 is revolved about the crank H to start operationinitially, such as by starting motor 51, the innermost ports of thetransverse bores 2| will register one after another with this port 22 toallow the mixture compressed therein to flow into the cylinder l9. As isthe usual practice in a two-cycle system, the upper end of the piston 3|in each instance is preferably provided with a baffle 58 extendingdiametrically across the piston and carried thereabove a distancegreater than the diameter of the'passageway 2|, whereby the gases cominginto the cylinder H! from the port 22 will be directed upwardly into thecylinder l9 to notonly flow to the top end thereof, but also to effect ascavenging action by forcing air and exhaust gases when in operationoutwardly from the opposite side of the baffle 58 through the passageway2| and out through the housing passageway 23.

'As the cylinder |9 thus charged with the combustible mixture travels onaround to close oil the amines particular Itransverse bore :21 ,thepiston 31 inzthat cylinder rises by reascnof the drive bar 30beingsi-multaneously lifted on-account of the rotary travel-of thebarrelz l. This lastaction of the bar forces the piston 3| upwardly inthe cylinder [9 to-oompress that fuel mixture, and as the piston 3'1approaches its upper limit of travel, or slightly thereafter inaccordance with the predetermined timing desired, the spark plug 29 thenbeing in the position on the extreme left hand side of the crank H, asindicated in Fig. -1, will be energized by coming under the distributorpoint 59 insulatedly carried by the plate I2 and in electricalcircuitwith a distributor head (it mounted in the usual mannerQua-generator 61' in turn driven through :the spur gear 62 in constantmesh with the ring gear (is-fixed around the outer end of th-ebarrel Zl. In this regard it is understood that thelusual ignitionsystem isemployed whereby the transformer coil &4, :herein shown mounted on thegenerator iii; transforms the generator current into the necessarilyhigh ignition voltage.

That sameaction follows for each of the pistons 3i,'-thechargeineachsucceeding-cylinder [9 being ignited .as rapidly as the next succeedingspark plug 20 comes around past the distributor point-59. Then thepistontl in each instance is driven downwardly from its uppermostposition to inturn :through its connected drive .bar 30 revalve thebarrel '24 :to continue the operation of the engine. It is to .beobserved that while each cylinder I29 fires once each every revolutionof the :barrel Iii, thereis :a considerable relative delay in the airingof each cylinder as between the time the .onespark plug 20 reaches thefiring position under the point .59 and then returns again, during whichperiod the particular cylinder 19 has'been recharged and exhausted andthen that charge compressed,

Anyssuitable drive hookupmay be employed to take power from the driven-barrel 24, :one such iormfbeing i2, drive shaft .65 having a pilot end5 carried :in .a suitable bearing within .the rear end -of the crank lJland another portion of that shazftfiisupported by the frame 26 in suchmannor that not only is :the shaft 65 adequately supported, but alsothat shaft through its bearing in==the frame 26 will .tend to givesupport to the horizontal tle-g of "the crank l I. Then a clutch member5'] driv-ingly mounted on the shaft .65 to slide longitudinallytherealong may frictionally interconnect :the shaft :65 with the barrel24 by pushing the member 67 up against the barrel 24 out suitablefriction member =68 interposed therebetween.

.lASJthB s-barrel 2d is turned during the normal operation, thepassageway 3.1 in each instance will be submerged in the oil carried inthe sump :36 not only to provide normal flow of the oil through thatpassageway into the cylinder 29, butlalso :to .afio-rd a relief ofapartial vacuum which'maysbe-set :up in the cylinder 29 as the drive.ba-r travels outwardly, although this change in pressure within thecylinder 29 will tend to be prevented by reason .of .theopening of theoil lines through the bar 3!! and the piston 3|. In. any event, returntravel of the drive bar :30 inwardly within the cylinder 2:9 past thepassageway 31 to close oil that passageway will cause the oil flow-:into the cylinder 249 to be forced through those lines provided tocause the oil to discharge intothe piston groove Mas above indicated.The rapid travel of the barrel 24;wil1 also tend to causes scoopingactionof the-oil into the passageway 3:1 in each instance, as well astothrow the toil about the :-various members exposed withintheihousingzlil. v-

Since there is substantially :a contimious flow of power, :thecompression ratio in .eachpower cylinder may be :carried :quite high ascompared to the usual:;two or four icycle type :of :engine. The mass ;of.the barrel :24 serves .admirably'ras .a fly :wheel in addition :to itsprimary purpose ;of translating the reciprocating: motion: of the piston31 into 'rotarymotion in :the absence :nf :a crankshaft and theheretofore usual connecting rods.

While I have herei-n .shownsand described my invention in the :oneparticular form, zasaipreviously indicated, mechanical changes unay beemployed in .many instances without departing from the spirit of theinvention, :and Itherefore do not desire to be limited to :that precise'form beyond thelimitations as may be imposed-.byithe following claims.

I claim:

'1. An :engine comprising a :rotatable :harrel having a plurality ofcylinders therein iwith'aparallel axes centered son. a vcommon circleaboutzthe axis of :said barrel; a .pistoniineach cylinder; a secondbarrel rotatable-about an axis :normal to the axis of said :firstbarrel; geartmeans drivingly interconnecting said barrels; said secondbarrel having a plurality of openings therein from one end equal innumber to that-pf said cylinders; members .slidingly fitting throughsaidopenings; and means interconnecting :said pistons to said members, onepiston to cachmember.

An engine comprising a rotatable barrel having a plurality ofcylinders-therein-with parallel axes centered on :a common circle aboutthe axis of said barrel; .a piston in each cylinder; :2. second barrelrotatable about an axis normal to the axis of said first barrel; gearmeans drivingly interconnecting said barrels; said-second barrel havinga plurality of openings therein from one end equal in number to that ofsaid cylinders; members slid-ingly fitting through said openings; andmeans interconnecting said pistons to said members; one'piston toeach'memher; said last interconnecting means comprising a rockablejoint.

3. An engine comprising a vdriving rotatable barrel having a pluralityof cylinders therein spaced apart and outwardly -from the rotation axisof the barrel; a piston in each .of said ,cylinders; a second barrelrotatable on an axissub stantially .at rightangles to the rotation axisof said first barrel; a plurality .of cylinders in .said second barrelequal in number. to that of the cylinders in the first barrel; a slidebar in .each second barrel cylinder; .means interconnecting each bar toa respective piston; fuel vconducting means axially entering said firstbarrel, and having a discharge port; said first barrelihav ing apassageway extending transversely thereof to have an innerportregistrable upon bar-rel rotation with said fuel discharge port,.andhaving another port opening vinto a. cylinder one passageway beingprovided .for each cylinder; said first barrel being further providedwith .an exhaust passageway from each cylinder with exhaust port; .ahousing about said barrel at least in the region of .said fuel andexhaust passageways; said housing having an exhaustport and said barrelexhaust ,ports being registrable there.- with one after anothen 4. Anengine comprising .a driving rotatable barrel having a plurality ofcylinders therein spaced apart and outwardly from the rotation axis ofthe barrel; a piston in each of said cylinders; a second barrelrotatable on an axis substantially at right angles to the rotation axisof said first barrel; a plurality of cylinders in said second barrelequal in number to that of the cylinders in the first barrel; a slidebar in each secand barrel cylinder; means interconnecting each bar to arespective piston; fuel conducting means axially entering said firstbarrel and having a discharge port; said first barrel having apassageway extending transversely thereof to have an inner portregistrable upon barrel rotation with said fuel discharge port, andhaving another port opening into a cylinder, one passageway beingprovided for each cylinder; said first barrel being further providedwith an exhaust passageway from each cylinder with an exhaust port; ahousing about said barrel at least in the region of said fuel andexhaust passageways; said housing having an exhaust port and said barrelexhaust ports being registrable therewith one after another; a fueligniter in each cylinder; a relatively fixed electrode in circuit with asource of current; and an electrode on each igniter revoluble in thepath of said fixed electrode.

5. An engine comprising an L crank fixed in position; a barrel revolublymounted on one leg of the crank; a second barrel revolubly mounted onthe other leg of the crank; each of said barrels being provided with acommon number of cylinders opening at adjacent ends of the barrels; apiston in each cylinder of each barrel interconnected at substantiallyright angles one with another; fuel supply means having a dischargeport; a transverse passageway entering each cylinder of said firstbarrel and having a port registrable once each barrel revolution withsaid fuel port; a relatively stationary housing member fitting aroundsaid first barrel and having an exhaust port; said first barrel havingan exhaust passageway from each cylinder with a discharge portpositioned to register with said housing port once each barrelrevolution; fuel igniter means in each cylinder; an electrode extendingexternally of each igniter; a relatively fixed electrode past which saidigniter electrodes travel; and a source of current interconnected withsaid electrodes.

6. An engine comprising an L crank fixed in position; a barrel revolublymounted on one leg of the crank; a second barrel revolubly mounted onthe other leg of the crank; each of said barrels being provided with acommon number of cylinders opening at adjacent ends of the barrels; apiston in each cylinder of each barrel interconnected at substantiallyright angles one with another; fuel supply means having a dischargeport; a transverse passageway entering each cylinder of said firstbarrel and having a port registrable once each barrel revolution withsaid fuel port; a relatively stationary housing member fitting aroundsaid first barrel and having an exhaust port; said first barrel havingan exhaust passageway from each cylinder with a discharge portpositioned to register with said housing port once each barrelrevolution; fuel igniter means in each cylinder; an electrode extendingexternally of each igniter; a relatively fixed electrode past which saidigniter electrodes travel; and a source of current interconnected withsaid electrodes; an oil sump through which said second barrel travels;means conducting oil from the sump into the second barrel cylinders; andoil conducting means in the cylinders of both barrels and across theirinterconnections.

7. An engine comprising an L crank fixed in position; a barrel revolublymounted on one leg of the crank; a second barrel revolubly mounted onthe-other leg of the crank; each of said barrels being provided with acommon number of cylinders opening at adjacent ends of the barrels; apiston in each cylinder of each barrel interconnected at substantiallyright angles one with another; fuel supply means having a dischargeport; a transverse passageway entering each cylinder of said firstbarrel and having a port registralble once each barrel revolution withsaid fuel port; a relatively stationary housing member fitting aroundsaid first barrel and having an exhaust port; said first barrel havingan exhaust passageway from each cylinder with a discharge portpositioned to register with said housing port once each barrelrevolution; fuel igniter means in each cylinder; an electrode extendingexternally of each igniter; a relatively fixed electrode past which saidigniter electrodes travel; and a source of current interconnected withsaid electrodes; said fuel supply means comprising a passageway throughat least one of said crank legs, and said fuel discharge port beingthrough a wall of that leg.

8. An engine comprising an L crank fixed in position; a barrel revolublymounted on one leg of the crank; a second barrel revolubly mounted onthe other leg of the crank; each of said barrels being-provided with acommon number of cylinders opening at adjacent ends of the barrels; apiston in each cylinder of each barrel interconnected at substantiallyright angles one with another; fuel supply means having a dischargeport; a transverse passageway entering each cylinder of said firstbarrel and having a port registrable once each barrel revolution withsaid fuel port; a relatively stationary housing member fitting aroundsaid first barrel and havingv an exhaust port; said first barrel havingan exhaust passageway from each cylinder with a discharge portpositioned to register with said housing port once each barrelrevolution; fuel igniter means in each cylinder; an electrode extendingexternally of each igniter; a relatively fixed electrode past which saidigniter electrodes travel; and a source of current interconnected withsaid electrodes; said fuel supply means com prising a, passagewaythrough at least one of said crank legs, and said fuel discharge portbeing through a wall of that leg; said one leg of the crank having apassageway therethrough leading from said fuel supply means; and saidfuel supply discharge port being in said first leg communicating withsaid passageway therein; and means creating atmospheric or abovepressure in said leg passageway.

9. In an engine, a pair of barrels one rotatably mounted on an axis atsubstantially right angles with the axis of the other; each of saidbarrels having a plurality of cylinders therein whose axes arerespectively parallel to their lbarrel axes; pistons in all of saidcylinders; means interconnecting one piston of one barrel with onepiston of the other barrel consecutively therearound whereby movement ofthe pistons in one barrel will tend to revolve the other barrel throughthe interconnecting pistons; one of said barrels being provided withtransverse passageways opening into its cylinders; fuel conducting meanshaving a port registrable with said passageways consecutively uponrotation of said one barrel; said one barrel also having an exhaustpassageway from each of its cylinders; and fuel igniting means operablein each of said one barrel cylinders once each barrel revolution.

10. An engine comprising an L crank fixed in position; a barrelrevolubly mounted on one leg of the crank; a second barrel revolublymounted on the other leg of the crank; each of said barrels beingprovided with a common number of cylinders opening at adjacent ends ofthe barrels; a piston in each cylinder of each barrel interconnected atsubstantially right angles one with another; fuel supply means having adischarge port; a transverse passageway entering each cylinder of saidfirst barrel and having a port registrable once each barrel revolutionwith said fuel port; a relatively stationary housing member fittingaround said first barrel and having an exhaust port; said first barrelhaving an exhaust passageway from each cylinder with a discharge portpositioned to register with said housing port once each barrelrevolution; fuel igniter means in each cylinder; an electrode extendingexternally of each igniter; a relatively fixed electrode past which saidigniter electrodes travel; and a source of current interconnected withsaid electrodes; said fuel supply means comprising a passageway throughat least one of said crank legs, and said fuel discharge port beingthrough a wall of that leg; said one leg of the crank having apassageway therethrough leading from said fuel supply means; and saidfuel supply discharge port being in said first leg communicating withsaid passageway therein; and means creating atmospheric or abovepressure in said leg passageway; and gear means drivinglyinterconnecting said barrels.

11. An engine comprising an L crank fixed in position; a barrelrevolubly mounted on one leg of the crank; a second barrel revolublymounted on the other leg of the crank; each of said barrels beingprovided with a common number of cylinders opening at adjacent ends ofthe barrels; a piston in each cylinder of each barrel interconnected atsubstantially right angles one with another; fuel supply means having adischarge port; a transverse passageway entering each cylinder of saidfirst barrel and having a port registrable once each barrel revolutionwith said fuel port; a relatively stationary housing member fittingaround said first barrel and having an exhaust port; said first barrelhaving an exhaust passageway from each cylinder with a discharge portpositioned to register with said housing port once each barrelrevolution; fuel igniter means in each cylinder; an electrode extendingexternally of each igniter; a relatively fixed electrode past which saidigniter electrodes travel; and a source of current interconnected withsaid electrodes; said fuel supply means comprising a passageway throughat least one of said crank legs, and said fuel discharge port beingthrough a wall of that leg; said one leg of the crank having apassageway therethrough leading from said fuel supply means; and saidfuel supply discharge port being in said first leg communicating withsaid passageway therein; and means creating atmospheric or abovepressure in said leg passageway; means supplying oil to each of saidother barrel cylinders; and oil conducting means through the pistons ofboth barrels and said interconnecting means, whereby the pistons in saidother barrel serve as oil pumps t-o deliver oil to the upper ends of thepistons in said one barrel.

12. An engine comprising an L crank fixed in position; a barrelrevolubly mounted on one leg of the crank; a second barrel revolublymounted on the other leg of the crank; each of said barrels beingprovided with a common number of cylinders opening at adjacent ends ofthe barrels; a piston in each cylinder of each barrel interconnected atsubstantially right angles one with another; fuel supply means having adischarge port; a transverse passageway entering each cylinder of saidfirst barrel and having a port registrable once each barrel revolutionwith said fuel port; a relatively stationary housing member fittingaround said first barrel and having an exhaust port; said first barrelhaving an exhaust passageway from each cylinder with a discharge portpositioned to register with said housing port once each barrelrevolution; fuel igniter means in each cylinder; an electrode extendingexternally of each igniter; a relatively fixed electrode past which saidigniter electrodes travel; and a source of current interconnected withsaid electrodes; said fuel supply means comprising a passageway throughat least one of said crank legs, and said fuel discharge port beingthrough a wall of that leg; said one leg of the crank having apassageway therethrough leading from said fuel supply means; and saidfuel supply discharge port being in said first leg communicating withsaid passageway therein; and means creating atmospheric or abovepressure in said leg passageway; and gear means drivinglyinterconnecting said barrels; and means delivering fuel under pressureinto said fuel conducting means.

ERWIN G. BAIGBR.

REFERENCES crrEn The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 367,029 Esty July 26, 1887839,300 Krohn Dec. 25, 1906 972,966 Williams Oct. 18, 1910 1,250,709Tanner Dec. 18, 1917 2,392,280 Allison 1.V.a Aug. 14, 1945

